During today’s Q1 2026 earnings call, Tesla CEO Elon Musk delivered a significant update for owners of Hardware 3 (HW3) vehicles, confirming that these cars cannot achieve full autonomy with their current equipment.
Musk admitted that HW3 simply does not have the capability to achieve unsupervised FSD, explaining that memory bandwidth is the primary choke point. According to a report by Tesla North, the company said on its earnings call HW3 possesses only one-eighth of the memory bandwidth found in the newer Hardware 4 (AI4), which is in the company’s latest vehicles.
To address this limitation for customers who previously purchased the FSD package, Tesla is planning an extensive upgrade and trade-in program. The company intends to offer discounted trade-ins for vehicles equipped with AI4 hardware, as well as the option to replace the vehicle’s computer entirely.
However, Musk noted that the upgrade is a complex undertaking because the cameras must also be replaced to ensure compatibility with the AI4 system. To handle the significant volume of hardware replacements required, Tesla plans to move beyond its traditional service centre model. The company intends to establish micro-factories or small-scale production facilities in major metropolitan areas to perform these swaps efficiently.
Musk emphasized that using standard service centres would be extremely slow and inefficient for a project of this scale, which is essential for enabling these vehicles to eventually enter the robotaxi fleet. While the hardware transition is organized, HW3 owners in Canada and elsewhere will still receive meaningful software improvements in the interim.
Ashok Elluswamy, Tesla’s Director of Autopilot Software, confirmed that a distilled version of the latest FSD 14 software is expected to be released for HW3 by the end of June 2026. This v14 “lite” version is designed to allow HW3 users to start drives from a parked state and access most of the flagship features available on the AI4 hardware, ensuring the older fleet remains highly capable during the supervised driving phase.
Some Canadians dropped $11,000 CAD for FSD capability, which right now is only available in a monthly subscription form at $99 CAD per month. We will need to wait and see how FSD 14 “lite” works out to be, but it seems the hardware limitation is holding back from full unsupervised self-driving, and HW3 owners will need to get an upgrade.
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7 years ago, Musk said HW3 Teslas had all the hardware necessary, compute and otherwise, for Full Self-Driving. He should be sued for fraud.